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02-13-2010, 07:18 PM
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CC Member
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Join Date: Oct 2002
Location: Eagle,
Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,307
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Not Ranked
Crower 1.8 roller rockers (stud mount) ?
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Regards,
Kevin
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02-13-2010, 08:38 PM
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CC Member
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Join Date: Apr 1999
Location: cleveland,
OH
Cobra Make, Engine: CSX4000, 427
Posts: 1,999
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Not Ranked
Call Crower ?
Maybe the rockers are similar to another application ?
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"After jumping into an early lead, Miles pitted for no reason. He let the entire field go by before re-entering the race. The crowd was jumping up and down as he stunned the Chevrolet drivers by easily passing the entire field to finish second behind MacDonald's other team Cobra. The Corvette people were completely demoralized."
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02-13-2010, 08:45 PM
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CC Member
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Join Date: Jul 2005
Location: San Tan Valley,
AZ
Cobra Make, Engine:
Posts: 194
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Not Ranked
Not enough volume to justify develo0ping, manufacturing, and stocking a shaft setup.
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02-15-2010, 05:48 PM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Not Ranked
Looks like a fairly good setup, the stud girdle gives it the ultimate strength.
All the studs secured to one another prevents failure of any one stud... or should do at least.
Be wary that increased rocker ratio also places more load on the cam lobes and lifters.
__________________
Gary
Gold Certified Holden Technician
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02-15-2010, 06:40 PM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
and also 8 studs are double what 4 studs are
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02-15-2010, 10:18 PM
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CC Member
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Join Date: Oct 2002
Location: Eagle,
Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,307
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Not Ranked
Quote:
Originally Posted by Mark O'Neal
Not enough volume to justify develo0ping, manufacturing, and stocking a shaft setup.
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Do you mean a for a FE ?
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Regards,
Kevin
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02-16-2010, 01:49 PM
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CC Member
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Join Date: Feb 2008
Location: Jacksonville,
FL
Cobra Make, Engine: Kirkham #570 w Shelby FE
Posts: 1,009
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Not Ranked
Gee, you can re-torque the heads without pulling the valve train?
This simply won't do... 
I'm guessin' you have to mod for pushrod oiling?
I looked at their online catalog, nothing in it for an FE... |
02-16-2010, 03:53 PM
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CC Member
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Join Date: Jun 2003
Location: Freedomia,,
Il
Cobra Make, Engine: Coupe,Blue w/white stripes SB; Roadster, Blue w/white stripes BB w/2-4s; SPF installer/Hot Rod-Custom Car builder
Posts: 1,376
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Not Ranked
Quote:
Originally Posted by Gaz64
Be wary that increased rocker ratio also places more load on the cam lobes and lifters.
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Since the stock ratio is 1.76, a 1.8 is not enough to have any noticeable impact on those items.
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WDZ
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02-16-2010, 04:51 PM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
actually by stud mounting the rocker you can design for different ratios--with the fe shaft being centered for the FOUR mounting bolts/studs, the ratio is pretty well locked in to keep the pushrod centered in the manifold hole---with the stud mounted rocker, you can keep the valve tip/roller orintation and keep the pushrod centered but change the pivot point/stud location coming up with different ratios--
The guys at Crower's always are coming up with somethings truly innovative for the application instead of staying in step with the "we been doing it this way for 30 years(52 now for the FE's) They certainly are not the follow the leader crowd where the present day thinking is going off shore to see how cheap it can be made
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02-17-2010, 09:51 AM
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CC Member
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Join Date: Jul 2005
Location: San Tan Valley,
AZ
Cobra Make, Engine:
Posts: 194
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Not Ranked
Quote:
Originally Posted by FUNFER2
Do you mean a for a FE ?
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Yes....or any other engine. |
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